Home / 85,856.26-128,804.02-29,696.32

Finding the Fourth Proportional to 85,856.26, 128,804.02 and 29,696.32

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Solution

The fourth proportional to 85,856.26, 128,804.02 and 29,696.32 is: 44,551.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,856.26 : 128,804.02 = 29,696.32 : x
  2. Step 2: Convert to fraction form
    85,856.26/128,804.02 = 29,696.32/x
  3. Step 3: Cross multiply
    85,856.26x = 128,804.02 × 29,696.32
  4. Step 4: Simplify right side
    85,856.26x = 3,825,005,461.09
  5. Step 5: Solve for x
    x = 3,825,005,461.09/85,856.26
  6. Step 6: Final answer
    x = 44,551.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.